4 + -1 = 3
Or -1 - 4 = -5
I would put 3.
It has 90 degrees so it's right
And none of the sides are equal so it's scalene
Answer:
A bi conditional statement is a combination of a conditional statement and its converse written in the if and only if form. Two line segments are congruent if and only if they are of equal length
Step-by-step explanation:
Answer:
Two lines that intersect and form right angles are called perpendicular lines. The symbol ⊥ is used to denote perpendicular lines.
Step-by-step explanation: